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Finding the Fourth Proportional to 384.39, 527.58 and 368.55

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Solution

The fourth proportional to 384.39, 527.58 and 368.55 is: 505.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    384.39 : 527.58 = 368.55 : x
  2. Step 2: Convert to fraction form
    384.39/527.58 = 368.55/x
  3. Step 3: Cross multiply
    384.39x = 527.58 × 368.55
  4. Step 4: Simplify right side
    384.39x = 194,439.61
  5. Step 5: Solve for x
    x = 194,439.61/384.39
  6. Step 6: Final answer
    x = 505.84

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.